[CI 4/5] drm/i915/irq: hide display_irqs_enabled access

[Jani Nikula]

Move the check for display_irqs_enabled within vlv_display_irq_reset()
and vlv_display_irq_postinstall() to avoid looking at struct
intel_display members within i915 core irq code.

Within display irq code, vlv_display_irq_reset() may need to be called
with !display_irqs_enabled, so add a small wrapper.

Reviewed-by: Rodrigo Vivi <rodrigo.vivi at intel.com>
Signed-off-by: Jani Nikula <jani.nikula at intel.com>
---
 drivers/gpu/drm/i915/display/intel_display_irq.c | 15 ++++++++++++---
 drivers/gpu/drm/i915/i915_irq.c                  | 12 ++++--------
 2 files changed, 16 insertions(+), 11 deletions(-)

diff --git a/drivers/gpu/drm/i915/display/intel_display_irq.c b/drivers/gpu/drm/i915/display/intel_display_irq.c
index f0d3bdb5fc60..6467a208184e 100644
--- a/drivers/gpu/drm/i915/display/intel_display_irq.c
+++ b/drivers/gpu/drm/i915/display/intel_display_irq.c
@@ -1481,7 +1481,7 @@ void bdw_disable_vblank(struct drm_crtc *_crtc)
 		schedule_work(&display->irq.vblank_dc_work);
 }
 
-void vlv_display_irq_reset(struct drm_i915_private *dev_priv)
+static void _vlv_display_irq_reset(struct drm_i915_private *dev_priv)
 {
 	struct intel_uncore *uncore = &dev_priv->uncore;
 
@@ -1499,6 +1499,12 @@ void vlv_display_irq_reset(struct drm_i915_private *dev_priv)
 	dev_priv->irq_mask = ~0u;
 }
 
+void vlv_display_irq_reset(struct drm_i915_private *dev_priv)
+{
+	if (dev_priv->display.irq.display_irqs_enabled)
+		_vlv_display_irq_reset(dev_priv);
+}
+
 void i9xx_display_irq_reset(struct drm_i915_private *i915)
 {
 	if (I915_HAS_HOTPLUG(i915)) {
@@ -1518,6 +1524,9 @@ void vlv_display_irq_postinstall(struct drm_i915_private *dev_priv)
 	u32 enable_mask;
 	enum pipe pipe;
 
+	if (!dev_priv->display.irq.display_irqs_enabled)
+		return;
+
 	pipestat_mask = PIPE_CRC_DONE_INTERRUPT_STATUS;
 
 	i915_enable_pipestat(dev_priv, PIPE_A, PIPE_GMBUS_INTERRUPT_STATUS);
@@ -1696,7 +1705,7 @@ void valleyview_enable_display_irqs(struct drm_i915_private *dev_priv)
 	dev_priv->display.irq.display_irqs_enabled = true;
 
 	if (intel_irqs_enabled(dev_priv)) {
-		vlv_display_irq_reset(dev_priv);
+		_vlv_display_irq_reset(dev_priv);
 		vlv_display_irq_postinstall(dev_priv);
 	}
 }
@@ -1711,7 +1720,7 @@ void valleyview_disable_display_irqs(struct drm_i915_private *dev_priv)
 	dev_priv->display.irq.display_irqs_enabled = false;
 
 	if (intel_irqs_enabled(dev_priv))
-		vlv_display_irq_reset(dev_priv);
+		_vlv_display_irq_reset(dev_priv);
 }
 
 void ilk_de_irq_postinstall(struct drm_i915_private *i915)
diff --git a/drivers/gpu/drm/i915/i915_irq.c b/drivers/gpu/drm/i915/i915_irq.c
index f75cbf5b8a1c..7920ad9585ae 100644
--- a/drivers/gpu/drm/i915/i915_irq.c
+++ b/drivers/gpu/drm/i915/i915_irq.c
@@ -658,8 +658,7 @@ static void valleyview_irq_reset(struct drm_i915_private *dev_priv)
 	gen5_gt_irq_reset(to_gt(dev_priv));
 
 	spin_lock_irq(&dev_priv->irq_lock);
-	if (dev_priv->display.irq.display_irqs_enabled)
-		vlv_display_irq_reset(dev_priv);
+	vlv_display_irq_reset(dev_priv);
 	spin_unlock_irq(&dev_priv->irq_lock);
 }
 
@@ -723,8 +722,7 @@ static void cherryview_irq_reset(struct drm_i915_private *dev_priv)
 	gen2_irq_reset(uncore, GEN8_PCU_IRQ_REGS);
 
 	spin_lock_irq(&dev_priv->irq_lock);
-	if (dev_priv->display.irq.display_irqs_enabled)
-		vlv_display_irq_reset(dev_priv);
+	vlv_display_irq_reset(dev_priv);
 	spin_unlock_irq(&dev_priv->irq_lock);
 }
 
@@ -740,8 +738,7 @@ static void valleyview_irq_postinstall(struct drm_i915_private *dev_priv)
 	gen5_gt_irq_postinstall(to_gt(dev_priv));
 
 	spin_lock_irq(&dev_priv->irq_lock);
-	if (dev_priv->display.irq.display_irqs_enabled)
-		vlv_display_irq_postinstall(dev_priv);
+	vlv_display_irq_postinstall(dev_priv);
 	spin_unlock_irq(&dev_priv->irq_lock);
 
 	intel_uncore_write(&dev_priv->uncore, VLV_MASTER_IER, MASTER_INTERRUPT_ENABLE);
@@ -794,8 +791,7 @@ static void cherryview_irq_postinstall(struct drm_i915_private *dev_priv)
 	gen8_gt_irq_postinstall(to_gt(dev_priv));
 
 	spin_lock_irq(&dev_priv->irq_lock);
-	if (dev_priv->display.irq.display_irqs_enabled)
-		vlv_display_irq_postinstall(dev_priv);
+	vlv_display_irq_postinstall(dev_priv);
 	spin_unlock_irq(&dev_priv->irq_lock);
 
 	intel_uncore_write(&dev_priv->uncore, GEN8_MASTER_IRQ, GEN8_MASTER_IRQ_CONTROL);
-- 
2.39.5